Brush.



F. D. WOLGRAM 6L E. KLAUSMANu BRUSH.

APPLIOATION FILED DBO. so, 190e.

938,735. Patented Nov.2, 1909.

UNITED STATES PATENT @FFME FRANK D. WOLFGRAM AND EDWARD KLAUSMAN, FMILWAUKEE, WISCONSIN, AS- SIGNORS TO SANITARY BRUSI-I AND COMPOUNDCOMPANY, OF MILWAUKEE, WIS- CONSIN, A CORPORATION OF WISCONSIN.

BRUSH.

Specification of Letters Patent.

Patented Nov. a, i909.

Application filed December 30, 1908. Serial No. 470,069.l

To all whom it may concern:

Be it known that we, F RANK D. l/VOLFGRAM and EDWARD KLAUSMAN, residingin Milwaukee, in the county of Milwaukee and State of lVisconsin, haveinvented new and useful Improvements in Brushes, of which the followingis a description, reference being had to the accompanying drawings,which are a part of this specification.

This invention relates to improvements in brushes and particularly tothat type known as dustless brushes. v

The principal object of the invention is to provide a brush in which theback of the brush is provided with a receptacle adapted to deliver adust absorbing medium on the floor or other surface being cleaned sothat in sweeping the compound back and forth it will absorb the dust.

A further object of the invention is to regulate from the outside of thebrush the quantity of the dust absorbing medium delivered from thereceptacle.

A still further object of the invention is to provide simple means,within the receptacle, for attaching a handle to either side of thebrush in order that both sides of the brush may be worn evenly.

A still further object of the invention is to provide an improved formof slide which is adapted to prevent the clogging of said slide in itsguide.

A still further object of the invention is to provide means whereby theelongated space between the bristles is prevented from being closed orreduced in size by the bristles.

l/Vith the above, and other objects, in view, the invention consists ofthe devices and parts, or their equivalents, as hereinafter set forth.

In the accompanying drawing, in which the same reference charactersrefer to the same parts in all of the views; Figure 1 is a centraltransverse sectional view of the improved brush; Fig. 2 is a transversesectional view taken on line 2k2 of Fig. 3; Fig. 3 is a centrallongitudinal sectional view of the brush; Fig. t is a sectional viewtaken on line 1 4 of Fig. 3, the bristles being omitted; and Fig. 5 is aview of a fragment of the brush showing means of holding the slide inadjusted position.

In the drawing, the numeral 8 indicates the brush back which is formedof a block of wood provided with a central longitudinal line ofapertures or discharge openings 9 and with rows of .bristles or tufts 10eX- tending downwardly from the block and positioned to form anelongated recess 11 beneath the block and coincident with the line ofapertures. An elongated rectangular shaped guard 12 is fastened to theunderside of the back in the elongated recess formed by the bristles.The upper portion of the guard is flanged for strength and to provideconvenient means for the accommodation of fastening screws 13 which passthrough holes in the flange and are threaded into the block. Thedepending sides of the guard are diverged outwardly in order to inclinethe bristles of the brush in the same direction and enlarge the size ofrecess at the bottom and also to prevent the bristles from bendinginwardly and closing up the recess. The lower edge of the guard is bentover upon itself inwardly for strength and to form a rounded edge toprevent injury to the bristles. A cover or casing 1A extends over thetop of the brush back and is fastened to sides thereof by means ofscrews 15. The cover or casing is formed of sheet metal and is spacedabove the brush back to form a chamber or receptacle 16 for holding thedust absorbing medium. A charging opening 17 is provided in the top ofthe casing and a slide 18 provided with downwardly and inwardly bentside edges serves as a door for the opening. The bent side edges areadapted to engage upwardly and outwardly bent edges 20 of the casingforming guides therefor. Stops 21, 21 connected to the under side of theslide, are positioned to limit the travel ofthe slide on its guides andact as stops to prevent the removal of the slide from the casing and toproperly position the slide in closing the charging opening. The end ofthe slide is bent upwardly in a curve to form a handle for conveniencein operating the same.

In order to provide a convenient and Istrong connecting means forattaching a handle 29. to the brush and also to reinforce the casingforming the receptacle, a casting 23 is connected to the brush backinside of the casing by screws 24, 24: passing through holes providedtherefor in lugs projecting downwardly and also at right angles to thecasting and into the block so that the casting is fastened to the topand both side edges of the block. The outer surface of the casting isshaped to conform to the inner surface of the casing to serve as a braceor reinforcement for said casing. Screw threaded openings 25, Q5positioned at an angle in said casting are adapted to accommodate thethreaded bolt 26 fastened in the end of the handle 22. The casing 14 isprovided with openings 27, 27 in register with the threaded openings ofthe casting thus providing` means for attaching the handle to eitherside of the brush. A bent plate 28 provided with bent over ears 29, 29is positioned against the inner edge of the casting and is adapted tocover the screw threaded openings of the casting and prevent loss of thecompound therethrough. The ears of the plate are bent on both sides ofthe casting and securely hold the plate in position.

A perforated guide plate 30 with its perforations in register with theapertures 9, 9 of the block 8 is connected to said block by tacks orother convenient attaching means. The side edges 31, 31 of this plateare bent upwardly and over toward each other to form a grooved guide wayfor a perforated slide 32, the perforations of which are positioned tobe brought into register with the perforations of the guide plate 30 andthe apertures 9 coincident therewith when the n slide is moved to thefull open position. The position of the perforated slide is controlledto regulate the discharge of the dust-absorbing medium by means of acranked wire 33 pivotally connected to the casing lit and having one ofits outwardly extending ends bent downwardly to form an operating handle34. The medial bent portion 35 of this wire is positioned between twoplates 36, 36extending upwardly from the perforated slide. In order tohold the cranked wire and the perforated slide in positions ofadjustment, knobs or screw heads 37 are connected to the casing, or thecasing may be embossed to form projections thereon (not shown). Thescrew heads are so positioned with relation to the handle of the crankedwire that in swinging the handle to adjust the slide to the full open orto the full closed position, the handle will have to spring over one orthe other Yof the screw heads which are in` the path of movement of thewire handle thus holdino the handle locked in either position. If it isdesired to partly open the discharge openings the wire handle is movedto a position between the two screwv heads as clearly shown in Fig. l ofthe drawing. Stop pins 38, 3S are positioned near both ends of theperforated guide to limit the movement of the slide to its full open orits full closed position. The slide 3Q does not extend the full lengthof the casing so as to provide sufficient space be* tween the ends ofthe slide and casing as to prevent the packing of the dust absorbingVmedium in the guide which would stop the adjustment of the slide.

In operation, the receptacle is filled with a dust-absorbing mediumthrough the charg- The perforated slide is adjusted as desiredy and thebrush is moved over the surface to be cleaned. This movement will causethe medium to be discharged continuously from the apertures in thebottom of the brush to the surface inclosed by the bristles forming theelongated space beneath the brush. As the medium is moved over thesurface by the brush it will gather or absorb the dust and dirt withoutdust arising therefrom, and when the surface is cleaned the medium isbrushed into a pile and removed. By the use of the guard the bristles ortufts are prevented from closing up the elongated recess and the mediumis free to drop on the surface being cleaned. The cranked wire providesa convenient means of adjusting the discharge of the medium and thescrew heads or projections hold the slide in adjusted position.

From the foregoing Vit will be seen that a brush is provided which issimple in construction and adjustments and is well adapted to accomplishthe desired results.

hat we claim as our invention is:

l. A brush, comprising a brush back provided with lines of bristles ortufts positioned apart to form anelongated recess, `a guard attached tosaid back and located mg opening and the slide door is closed.k

within said recess, a receptacle adjacent to f tioned apart to form anelongated recess, a

guard attached to said back and locatedV within said recess, areceptacle adjacent to said brush and constructed to discharge adust-absorbing medium within and through said recess, a slide forcontrolling the dis# charge of said medium, and means for locking theslide in adjusted positions.

3. A brush, comprising a brush back provided with lines of bristles ortufts positioned apart to form an elongated recess, ya

guard attached to said back and located within said recess, a receptacleadjacent to.

said brush and constructed to discharge a dust-absorbing medium withinand through said recess, a slide for controlling the discharge of saidmedium, and a cranked member for locking the slide in adjustedpositions.

4t. A brush, comprising a brush back provided with lines of bristles ortufts positioned apart to form an elongated recess, a guard attached tosaid back and located within said recess, a receptacle adjacent to saidbrush and constructed to discharge a dust-absorbing medium within andthrough said recess, a slide for controlling the discharge of saidmedium, a cranked member for adjusting the position of the slide, andmeans projecting in the path of movement of the cranked member forlocking said member in adjusted positions.

5. A brush, comprising a brush back provided with lines of bristles ortufts positioned apart to form an elongated recess, a guard attached tosaid back and located within said recess, a receptacle adjacent to saidbrush and constructed to discharge a dust-absorbing medium within andthrough said recess, a slide for controlling the discharge of saidmedium, a cranked member provided with a handle for adjusting theposition of the slide, and projections extending in the path of movementof the handle of the cranked member for locking said member in adjustedpositions.

G. A brush, comprising a brush back provided with lines of bristles ortufts positioned apart to form an elongated recess, a guard attached tosaid back and located within said recess, a receptacle adjacent to saidbrush and constructed to discharge a dust-absorbing medium within andthrough said recess, a slide for controlling the discharge of themedium, a guide for said slide, plates extending upwardly from saidslide, a cranked member provided with a handle positioned so that thecranked portion of the member will extend between the upwardly extendingplates, and projections extending' in the path of movement of the handleof the cranked member for locking said member in adjusted positions.

7. A brush, comprising a brush back provided with lines of bristles ortufts posi-Y tioned apart to form an elongated recess, a guard attachedto said back and located within said recess, a receptacle adjacent tosaid brush and constructed to discharge a dust-absorbing medium withinand through said recess, a slide for controlling the discharge of themedium, a guide for said slide, stops positioned at a distance from theend walls of the receptacle for limiting the movement of the slide,plates extending upwardly from said slide, a cranked member providedwith a handle positioned so that the cranked portion of the member willextend between the upwardly extending plates, and projections extendingin the path of movement of the handle of the cranked member for lockingsaid member in adjusted positions.

8. A brush, comprising a brush back provided with lines of bristles ortufts positioned apart to form an elongated recess, a rectangular guardattached to said back and located within said recess and constructed tohold the bristles or tufts spaced apart, a sheet metal casing connectedto the sides of said brush back and spaced above said back to form areceptacle for containing a dustabsorbing medium, a cover for closing acharging opening in said casing, a handle attaching means connected tosaid brush back and located within the casing and constructed toreinforce the same, and means for discharging the dust-absorbing mediuminto and through the elongated recess.

9. A brush, comprising a brush back provided with lines of bristles ortufts positioned apart to form an elongated recess, a rectangular guardatt-ached to said back and located within said recess and constructed tohold the bristles or tufts spaced apart, a sheet metal casing connectedto the sides of said brush back and spaced above said back to form areceptacle for containing a dustabsorbing medium, a cover for closing acharging opening in said casing, a casting provided with threadedopenings connected to said brush back and located within the casing andconstructed to reinforce the salne, said casing provided with openingsin register with the threaded openings, a handle provided with athreaded portion constructed to pass through an opening of the casingand to engage a threaded opening of the casting, and means fordischarging the dustabsorbing medium into and through the elongatedrecess.

10. A brush, comprising a brush back provided with lines of bristles ortufts positioned apart to form an elongated recess, a rectangular guardattached to said back and located within said recess and constructed tohold the bristles or tufts spaced apart, a sheet metal casing connectedto the sides of said brush back and spaced above said back to form areceptacle for containing a dustabsorbing medium, a cover for closing acharging opening in said casing, a casting provided with threadedopenings and with lugs extending downwardly and also at right anglesthereto and constructed to be connected to the top and side edges ofsaid brush back and located within the casing and constructed toreinforce the same, said casing provided With openings in register Withthe threaded openings, a handle provided with a threaded portionconstructed to pass through an opening of the casing and to engage ethreaded opening of the casting, and means for discharging thedust-absorbing medium into and through the elongated recess.

In testimony whereof, We aix our signatures, 1n presence of tWoWitnesses.

FRANK D. WOLFGRAM. EDWARD KLAUSMAN.

Vitnesses R. S. C. CALDWELL, ALMA A. KLUG.

